Keenan, J. P., Gallup, G. G., & Falk, D. (2003). The face in the mirror: The search for the origins of consciousness. Ecco.
Chicago-viite (17. p.)Keenan, Julian Paul, Gordon G. Gallup, ja Dean Falk. The Face in the Mirror: The Search for the Origins of Consciousness. New York: Ecco, 2003.
MLA-viite (9. p.)Keenan, Julian Paul, et al. The Face in the Mirror: The Search for the Origins of Consciousness. Ecco, 2003.
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